Question: Who is the grandnephew of Sixtus IV?
Paraphrase: give me the name of the grandnephew of Sixtus IV?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q163514 p:P1038 ?s . ?s ps:P1038 ?obj . ?s pq:P1039 wd:Q4113832 }